linux-kernel - Re: [PATCH v2 0/2] Add QEMU virt-ctrl driver and update m68k virt

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Message-ID: <07164a0e-fff2-4e8a-baeb-7b5b6f730365@vivier.eu>
Date: Wed, 4 Feb 2026 16:12:29 +0100
From: Laurent Vivier <laurent@...ier.eu>
To: Daniel Palmer <daniel@...f.com>
Cc: Kuan-Wei Chiu <visitorckw@...il.com>, sre@...nel.org,
 jserv@...s.ncku.edu.tw, eleanor15x@...il.com, linux-kernel@...r.kernel.org,
 linux-m68k@...ts.linux-m68k.org, linux-pm@...r.kernel.org,
 Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH v2 0/2] Add QEMU virt-ctrl driver and update m68k virt

Le 04/02/2026 à 14:02, Daniel Palmer a écrit :
> Hi Laurent,
> 
> On Wed, 4 Feb 2026 at 21:53, Laurent Vivier <laurent@...ier.eu> wrote:
>> How to use it with QEMU? Do we need some changes in the code?
> 
> You just load u-boot instead of the linux kernel. I don't think you
> can actually do much with it because there's no virtio support to load
> linux etc yet.
> But I have that all working in my own branch and now Kuan-Wei has got
> the first parts merged adding the remaining parts to boot linux
> shouldn't be too difficult.
>
I have an old branch with a bootstrap ROM that can be used to start a bigger ROM, I use it with 
petitboot, but perhaps it can be used to load U-boot instead:

https://github.com/vivier/qemu/tree/m68k-virt-petitboot

In this case virt-ctrl is extended to control the firmware.

Thanks,
Laurent